Door lock



FIG. 1 is a top, front, left side perspective view of a first embodiment of a door lock according to my new design;

FIG. 2 is a front elevation view of FIG. 1;

FIG. 3 is rear elevation view of FIG. 1;

FIG. 4 is a left side elevation view of FIG. 1;

FIG. 5 is a right side elevation view of FIG. 1;

FIG. 6 is a top plan view of FIG. 1;

FIG. 7 is a bottom plan view of FIG. 1;

FIG. 8 is a top, front, left side perspective view of a second embodiment of a door lock according to my new design;

FIG. 9 is a front elevation view of FIG. 8;

FIG. 10 is rear elevation view of FIG. 8;

FIG. 11 is a left side elevation view of FIG. 8;

FIG. 12 is a right side elevation view of FIG. 8;

FIG. 13 is a top plan view of FIG. 8; and,

FIG. 14 is a bottom plan view of FIG. 8.

The dash-dash broken lines show portions of the door lock that form no part of the claimed design. The dot-dash broken lines represent boundaries of the claimed design and form no part of the claimed design. 

CLAIM The ornamental design for a door lock, as shown and described. 